I found a few recipes on this wonderful site which call for "Rotel" canned tomatoes and I don't know what they are. What would be the equivalent here in Canada? Are they simply canned stewed tomatoes, or plain or tomatoes with something added i.e. peppers and onions? I want to make a recipe I found for baby back ribs which sounds just awesome along with a BBQ sauce listed in the same thread. Thanks.

There are two kinds of Rotel, just crushed tomatoes and some have jalapeño peppers mixed in . If you like spicy food you can use a mix of normal canned diced or crushed tomatoes and add cayenne pepper or jalapeños if you have them. I treid the brand and found them to be no different than other toms in cans.

1
Place in 4 quart saucepan, and simmer until reduced to 1 quart.
2
(Measure 1 quart water into saucepan in advance, and mark on outside of pan, to help you judge).
3
The cans at the grocers are 10oz in size, so freeze in 1 cup portions.
4
This way you can adjust the hot peppers to suit yourself, and making small batches is so easy!
5
Remember, freezing makes the peppers hotter.

True. The original ro*tel has green chilis, but they have habanero and jalapeno versions, too.
I guess you could use any chili you like, if you're making your own
I would probably add some cilantro or cumin as well, since that's my personal preference